Rail is definitely the coolest way to go but it has many drawbacks. One of the most prominent of these drawbacks is the fact that to efficiently use rail for haulage etc, you must have a well graded, reasonably flat ore body, (not a problem in most bitty mines to my knowledge). Rail equipment is crap on grades of any pitch above 4%, and that's being generous, steel wheels on wet steel rails just can't get the same traction as rubber on rock.
That doesn't really apply to mantrips as they are pretty light in comparison to a loaded ore trip.
If the orebody has any serious pitch to it (like anty coal) then rubber tired equipment makes it much less of a headache to develop and exploit. This is ofcourse assuming that the orebody is not tabular in nature (like an anty mine) and this is beyond the scope of this discussion. Sorry, almost went on a tangent there.
In anty coal the pitch is generally so steep from what I've seen, that rail is perfect for it because you can run along the strike of the seam and just use gravity to load cars at certain points. Running a truck in that kind of environment means blasting out way more rock than you have to. Unless you have a really thick seam. Less rock=less dilution=good.
Rail equipment can haul more in one setting than rubber tired equipment any day, and with maintenance, you have relatively few motors to work on as opposed to a motor on every piece of equipment. Railcars are also easier to maintain than a fleet of trucks I'd imagine, note that I didn't say cheaper though, lol! I have no idea what the cost differences are to maintain a rail fleet compared to a truck fleet.
I wouldn't be surprised to see a surge in battery equipment in coal back east but diesel is the standard out here in the west, be it coal or hard rock.
_________________ Erik Novoa
Miner/ Railroader
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